Trolley-stand.



No. 699,364. Patented May 6, I902.

C. G. BLEASDALE.

TRGLLEY STAND.

(Application filed Aug. 14, 1901.) (No Model.)

WITNESSES INVENTOR m: uunms PETERS co. Pumouruo. wASHmGTcn. ov c.

UNITED STATES oH-ARLEs e. BLEASDALE,

OF DETROIT, MICHIGAN.

TRO LLEY-STAN D.

SPECIFICATION forming part of Letters PatentNo. 699,364, dated May 6, 1902. Application filed August 14, 1901. Serial No. 72,047. (No model.)

To ctZZ whont it may concern:

Be it known that I, CHARLES G. BLEAS- DALE, a citizenof the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Trolley-Stands; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawing, which forms a part of this specification.

' This invention relates to trolley-stands for electric cars, and has for its object an improved stand in which the socket for the trolley-arm is mounted to revolve on bearings that are protected from injury and are arranged to be at all times fully lubricated and are arranged to ofier the least resistance of either oscillation or rotation.

The ordinary trolley-arm is of considerable length, usually from ten to fifteen feet long, and it must be mounted to swing vertically in order that it may be adapted to engage against the wire either when the wire is low down or high up. It must also be adapted to oscillate or swing sidewise and must be arranged to make this side swing quickly and easily. Ifit does not swing easily and quickly, the trolley-wheel is apt to escape from the lead-wire when the car is entering upon or leaving a curved part of the line. The easy oscillation of the arm also lengthens-the life of the trolley-wheel. The trolley-stand is located on the top of the car, where it is exposed to the weather, and it is desirable that the working parts should be protected, so that they may not be injured by dust, snow, ice, or water. Furthermore, the location of the trolley-stand makes it difficult for the attendant to reach it to lubricate it, and therefore it is desirable that some means be provided whereby lubrication may be efiected at long intervals and the lubrication be retained in good condition through a long period of time. Furthermore, the stand should be provided with some device which would retain the lu bricant and prevent it from escaping onto the car-top and injuring the same. The device which embodies my invention obviates the difliculties which have been set forth.

In the drawing the figure shows the several parts of the stand spread from the position which they occupy in the assembled device, and it shows each part in section, showing a half of the complete device.

Aindicates the base-plate, which may have any desired shape, but is provided with a solid base a,a central stud b, and an upturned flange c, which constitutes the side walls of achambercontained within said side wallsand underneath the piece 13. The upturned flange or side wall a is preferably circular and concentric with the stud b, and the base A is provided with projecting lugs d, by which it may be bolted or secured to the top of the car or to a traveling support. Aportion of the base a inside the upturned flange c constitutes a ring concentric with the stud b and extends through the flange c, a short distance inward is chilled or hardened to make a durable track for the running wheels of the parts next to be described.

0 indicates a frame having a circular pcriphery e, joined to a central hubf by spokes g and provided externally with projecting axle-studs h, on each of which is mounted a running wheel 70. The flange c has several projections extending inward. In the half shown in the drawing are shown two such projections v m. Each of these is provided with a slot that has an enlarged opening on the under side for the reception of a bolt-head. The stem of the bolt projects upward through a cover hereinafter described, and to the stem of this bolt is secured the base of the trolleysocket.

On the flange crests a ring B. Preferably the upper surface of the flange c is grooved, and the lower surface B is grooved, and the two grooves register, and between the two grooves or in the annular chamber produced by the two grooves is laid a packing-ring of any suitable material. The ring B is provided with an inturned flange 2, and the under surfaceof this flange is hardened. Normally it rests just above the wheels 70 and just out of contact with them. A packing of any suitable material, such as canvas or rubber 3, rests on the inturned flange of the ring B and over and in contact with the upper surface of the ring 6. Still above this is a cover 4 of thin material, with a downturned flange 5, and the bolts 6 and 7 project upward through the packing3 and through ,the holes in the cover 4, and the base 9 of the trolley-socket is bolted by the bolts 6 and 7 over the ring c.

Any of the well-known trolley-arm bases of commerce may be used, the one shown in the drawing being one of the Well-known forms manufactured by'the Westinghouse Company and the General Electric Company,

and these need not be described. The wellknown trolley-bases found on themarket have a standard round base, with a standard distance between the bolt-holes.

The trolley-arm mounted on the substructure herein described can be rotated readily entirely around the stud b, or it will oscillate readily thereon. The ordinary trolley-arm has the ability to rotate around the stud 10, shown in the upper part of the figure, and this is not changed in any way in employing the trolley-arm with the base herein described; but the greater facility of rotation of the base herein described generally causes the movement of the trolley-arm to be on the base rather than on the pin 10, as heretofore.

' A quantity of oil is placed in the chamber formed inside of the flange c, the flange B, and between the base a and the cover 4, and this is protected from all outside disturbing bodies. It is also retained in thecavity of the chamber and cannot either be lost or produce any injurious effects on the car.

' Electric coupling-screws 12 are arranged at both the front and back of the housing, and

7 there is free electrical connection.

The pieces 13 and the base A are both bolted through t-helugs D and d to the car-roof, and the cover 4 being secured to the rotative a housing arranged to be attached to the carroof, a support within said housing arranged to rotate therein,a trolley-socket arranged to be secured to the support and means for covering the housing, substantially as described.

3. In combination with a base arranged to be attached to a car-roof provided With atrack for a rotary support, an upper track arranged to be secured to the fixed base, a cover adapted to inclose the upper side of the housing thus made, and a packing held in position relatively fixed to the fixed parts of the housing and'adapted to coact with the rotary part of the housing to form a complete closure, substantially as described.

4. In a trolley-support, the combination of a fixed part provided with a circular hardened track and having a base portion and covering-ring adapted to engage the base portion with a close-packed joint, a rotative cover arranged to be placed over the cover-ring, an interposed packing, a rotary support provided with Wheels arranged to travel on the hardened track and means for securing the trolley-stand to the rotary support through the interposed packing, substantially as described.

5. In a trolley-support, in combination with a housing provided with a hardened track on its under side and a hardened track on its covered side, a rotary support arranged in the housing and provided with running wheels adapted to engage the said hardened track, substantially as described.

6. In combination with a trolley-stand, a rotative support, a housing inclosing and covering said rotative support and means for securing electric Wires to said housing, substantially as described.

In testimony whereof I sign this specification in the presence of twowitnesses.

CHARLES G. BLEASDALE.

Witnesses:

CHARLES F. BURTON, ELLIOTT J. STODDARD. 

